155273157 has 48 divisors (see below), whose sum is σ = 248451840. Its totient is φ = 92866176.

The previous prime is 155273143. The next prime is 155273159. The reversal of 155273157 is 751372551.

It is a happy number.

It is not a de Polignac number, because 155273157 - 2⁷ = 155273029 is a prime.

It is a zygodrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155273159) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 988923 + ... + 989079.

It is an arithmetic number, because the mean of its divisors is an integer number (5176080).

Almost surely, 2^155273157 is an apocalyptic number.

It is an amenable number.

155273157 is a deficient number, since it is larger than the sum of its proper divisors (93178683).

155273157 is a wasteful number, since it uses less digits than its factorization.

155273157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362 (or 359 counting only the distinct ones).

The product of its digits is 36750, while the sum is 36.

The square root of 155273157 is about 12460.8650181278. The cubic root of 155273157 is about 537.4839015910.

The spelling of 155273157 in words is "one hundred fifty-five million, two hundred seventy-three thousand, one hundred fifty-seven".